Manuel Statik Analiz (LLM Okumali) — NjRAT / Bladabindi | Tehdit: HIGH

Файл Kimligi

SHA256c559ae3589ef6275ab17974827435d17215a4f81b35da976a98299021addcc93
Orijinal Ad440b4ef096504461be38b21b0ec74e57.exe
Install AdiWindowsServices.exe
Размер32.256 byte
DilVB.NET (.NET Framework 2.0)
PackerYok (normal entropi: 5.61)

C2 Sunucusu & Ag Iletisimi

AdresTipProtokolTespit Yontemi
jun88.nowDDNS DomainTCPStrings — gomunlu konfigurasyon

Baglanti Anahtari (Key/ID): f217d66ad40ee1c58064dc08d8ad14a8

NjRAT varsayilan portlari: 1177, 5552, 7777

Persistence (Kalicilik)

YontemЗначение
Registry Run KeyHKCU\Software\Microsoft\Windows\CurrentVersion\Run\WindowsServices
Dropped ФайлC:\Users\[USER]\AppData\Roaming\WindowsServices.exe
Firewall Bypassnetsh firewall add allowedprogram ... ENABLE

Yetenekler

  • Keylogger — GetAsyncKeyState, GetKeyboardLayout, GetKeyboardState, MapVirtualKey, ToUnicodeEx
  • Screenshot / Ekran Goruntuleme — CopyFromScreen, Bitmap, Graphics, PixelFormat
  • Webcam Yakalama — avicap32.dll, capGetDriverDescriptionA, capCreateCaptureWindow
  • USB Yayilimi — USB_SP modulu, GetLogicalDrives
  • Uzaktan Komut Calistirma — Shell, Execute, cmd.exe
  • Файл Yoneticisi — ReadAllBytes, WriteAllBytes, Download, FileStream
  • AV Tespiti — Select * From AntiVirusProduct (WMI SecurityCenter2)
  • Remote Desktop (Uzak Erisim) — TcpClient, NetworkStream, Socket
  • Process Manager — GetProcessesByName, GetProcessById

Anti-Analiz Teknikleri

  • Anti-Debug — NtSetInformationProcess (ThreadHideFromDebugger)
  • VM Tespiti — VBoxService, VGAuthService string kontrolu
  • Sandbox/Arac Tespiti: procexp, SbieCtrl (Sandboxie), SpyTheSpy, wireshark, apateDNS, IPBlocker, TiGeR-Firewall, smsniff, exeinfoPE, NetSnifferCs, Sandboxie Control, processhacker
  • Analiz Araci Tespiti: dnSpy, CodeReflect, Reflector, ILSpy (debugger tespit)

String Temelli Bulgular

Kritik Stringler:
  [C2 HOST]   jun88.now
  [INSTALL]   WindowsServices.exe
  [REGISTRY]  Software\Microsoft\Windows\CurrentVersion\Run
  [KEY]       f217d66ad40ee1c58064dc08d8ad14a8
  [B64-1]     Zmx5ODgua3Jk  =>  (decode edilemedi)
  [B64-2]     Y262SUCZ4UJJ  =>  (decode edilemedi)
  [FW-BYPASS] netsh firewall add allowedprogram ... ENABLE
  [DROPPED]   WindowsServices.exe (Stub.exe referansi)
  [AV-QUERY]  Select * From AntiVirusProduct
  [VMCHECK]   VBoxService, VGAuthService
  [DEBUGGER]  dnSpy, ILSpy, processhacker, SbieCtrl

Teknik Ozet

Bu ornek, VB.NET ile yazilmis NjRAT (Bladabindi) ailesi Remote Access Trojan'idir. 32KB boyutuyla kucuk ama kapsamli fonksiyonlara sahip: keylogger, ekran goruntuleme, webcam yakalama, USB yayilimi, dosya yoneticisi, uzaktan komut yurütme. C2 iletisimi TCP uzerinden jun88.now adresine baglaniyor. Registry Run key ile kalicilik sagliyor, netsh firewall ile kendini Windows guvenlik duvarina ekliyor. Analiz araclarina (Sandboxie, ILSpy, Wireshark, x64dbg, processhacker) ve sanallaStirma ortamlarina (VirtualBox, VMware) karsi koruma iceriyor.

NjRAT — Профиль вредоносного ПО

njRAT Bladabindi. Spanish cotizacion lure. get_Panel1 C2 panel. MENA + Latin America targeting.

Тип вредоносного ПО
RAT
Язык программирования
VB.NET
C2 Протокол
TCP (varsayilan port 1177)
Целевые системы
Windows
Другие названия (AKA)
Bladabindi, H-Worm, houdini

Технические детали

TCP port 1177 (varsayilan), XOR tabanlı iletisim sifreleme, .NET Framework 2.0+, Mutex: {GUID}, Registry Run key persistence, Keylogger (GetAsyncKeyState), clipboard monitor, screenshot, remote shell, remote camera

Атрибуция / Актор угрозы

Arap dilli siber suc topluluklari, en cok MENA (Orta Dogu ve Kuzey Afrika) bolgesindeki gruplar. Yasama savasi donemi Suriyeli gruplar tarafindan da kullanilmistir.

Возможности и поведение

Uzaktan Erişim & Kontrol
Keylogger
Ekran Görüntüsü
Webcam Erişimi
Dosya Yönetimi
Süreç Yönetimi
Komut Yürütme
Kalıcılık Mekanizması

Список IOC (6 индикаторов)

IOC — NjRAT
# SHA256 c559ae3589ef6275ab17974827435d17215a4f81b35da976a98299021addcc93 # MD5 440b4ef096504461be38b21b0ec74e57 # DOMAIN jun88.now # DOMAIN fly88.krd # REGISTRY HKCU\Software\Microsoft\Windows\CurrentVersion\Run # FILEPATH C:\Users\AppData\Roaming\WindowsServices.exe
ТипЗначениеПримечание
sha256 c559ae3589ef6275ab17974827435d17215a4f81b35da976a98299021addcc93
md5 440b4ef096504461be38b21b0ec74e57
domain jun88.now
domain fly88.krd
registry HKCU\Software\Microsoft\Windows\CurrentVersion\Run
filepath C:\Users\AppData\Roaming\WindowsServices.exe
NjRAT — Полный профиль →

C2 Серверы (8 зарегистрированных серверов для этого семейства)

Адрес Тип Порт Протокол Статус Страна
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
comodoca.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
comodoca.com domain — TCP active —
microsoft.com domain — TCP active —

Адреса C2 предоставляются только на основе образцов вредоносного ПО, вручную проверенных командой KEYDAL. Коммерческое использование запрещено.

Теги
njratbladabindiratkeyloggerscreenshotwebcamc2tcpvbnetstatik-analizmanuel